Johnson approached his 41-year-old victim, a former coworker, and shot him three times with a .45 caliber handgun, said Kelly in a press conference Friday.
"He fired at close range, striking the 41-year-old victim in the head," Kelly said.
The name of the victim is not being released pending family notification, but the New York Times is identifying him as Steve Ercolino
. The New York Daily News
is reporting the victim was Johnson's ex-boss.
Johnson then walked away from the scene, heading eastbound. When police approached him, Kelly said Johnson pulled his gun on the police.
"They returned fire," Kelly said, and Johnson was killed.
Kelly said Johnson tried shooting at police, but it is unclear "if he got any rounds off." The New York Times is now reporting that he did not.